Anything is possible and there have been a very VERY few select non-Asian individuals who have debuted as Kpop idols. I feel most Kpop fans wouldnt take kindly to an idol who is Asian but isnt east or south east Asian. I cant speak from experience but this is.
Its called K-pop as in Korean Pop for a reason.
I cant speak from experience but this is. Just because youre far from everyone else doesnt mean you cant achieve your dream. However sometimes you just cant get on Twitter without seeing the videos of K-Pop flooding popular hashtags and discussions. If you truly stand out you might have a better chance but other than improving your own abilities theres not much you can do because youre not Asian.